Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-18-0035.1 |
Role of Ocean Model Formulation in Climate Response Uncertainty | |
Krasting, John P.1; Stouffer, Ronald J.1,2; Griffies, Stephen M.1; Hallberg, Robert W.1; Malyshev, Sergey L.1; Samuels, Bonita L.1; Sentman, Lori T.1 | |
2018-11-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:22页码:9313-9333 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Oceanic heat uptake (OHU) is a significant source of uncertainty in both the transient and equilibrium responses to increasing the planetary radiative forcing. OHU differs among climate models and is related in part to their representation of vertical and lateral mixing. This study examines the role of ocean model formulation-specifically the choice of the vertical coordinate and the strength of the background diapycnal diffusivity K-d-in the millennial-scale near-equilibrium climate response to a quadrupling of atmospheric CO2. Using two fully coupled Earth system models (ESMs) with nearly identical atmosphere, land, sea ice, and biogeochemical components, it is possible to independently configure their ocean model components with different formulations and produce similar near-equilibrium climate responses. The SST responses are similar between the two models (r(2) = 0.75, global average similar to 4.3 degrees C) despite their initial preindustrial climate mean states differing by 0.4 degrees C globally. The surface and interior responses of temperature and salinity are also similar between the two models. However, the Atlantic meridional overturning circulation (AMOC) responses are different between the two models, and the associated differences in ventilation and deep-water formation have an impact on the accumulation of dissolved inorganic carbon in the ocean interior. A parameter sensitivity analysis demonstrates that increasing the amount of K-d produces very different near-equilibrium climate responses within a given model. These results suggest that the impact of the ocean vertical coordinate on the climate response is small relative to the representation of subgrid-scale mixing. |
英文关键词 | Climate sensitivity Climate models General circulation models Ocean models Parameterization Subgrid-scale processes |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000448510200002 |
WOS关键词 | INCREASED ATMOSPHERIC CO2 ; Z-COORDINATE ; HEAT UPTAKE ; TEMPERATURE-CHANGE ; NUMERICAL-MODEL ; SEA-LEVEL ; PART II ; SENSITIVITY ; CIRCULATION ; SIMULATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/20278 |
专题 | 气候变化 |
作者单位 | 1.NOAA, Geophys Fluid Dynam Lab, Princeton, NJ 08540 USA; 2.Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA |
推荐引用方式 GB/T 7714 | Krasting, John P.,Stouffer, Ronald J.,Griffies, Stephen M.,et al. Role of Ocean Model Formulation in Climate Response Uncertainty[J]. JOURNAL OF CLIMATE,2018,31(22):9313-9333. |
APA | Krasting, John P..,Stouffer, Ronald J..,Griffies, Stephen M..,Hallberg, Robert W..,Malyshev, Sergey L..,...&Sentman, Lori T..(2018).Role of Ocean Model Formulation in Climate Response Uncertainty.JOURNAL OF CLIMATE,31(22),9313-9333. |
MLA | Krasting, John P.,et al."Role of Ocean Model Formulation in Climate Response Uncertainty".JOURNAL OF CLIMATE 31.22(2018):9313-9333. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论